- You cannot add "Acer Nitro VG240YS 23.8 Inch (60.45 Cm) IPS Full HD 1920 X 1080 Pixels, Gaming LCD Monitor with LED Backlight I AMD Freesync I 0.5 MS Response time I 165Hz Refresh Rate I Dp, 2 X Hdmi, Black" to the cart because the product is out of stock.